UA 2492 then CZ 1634 at San Francisco
Los Angeles → San Francisco → Chicago O'Hare
Timetable, San Francisco time
07:30UA 2492 from Los Angeles at the gatealso NH 7357, VA 8059, NZ 9275
23:39CZ 1634 to Chicago O'Hare leaves the gate
16 h 09 apart on the timetable
CZ 1634 leaves 16 h 09 after UA 2492 arrives on the timetable: more than half a day, so not a connection we count.